Yeah I understand this and chances is they would get one without any issues, not for the normal general public. Last time YOTS Omega only like 2 piece made it to stores for each BigW, and I only see empty shelves.
So thus a risk if you were to toss between getting one at $150, $110 at sale on thursday if any left. Or wait for BigW. The Big note, is if you missed it, you going to find $200+ mark plus shipping.